PEEK/CF复合材料的非等温结晶动力学研究

摘要

利用差示扫描量热仪(DSC)研究了聚醚醚酮(PEEK)和 PEEK/碳纤维(CF)复合材料的非等温结晶行为,采用Avrami,Ozawa和Mo方程对PEEK/CF复合材料的非等温动力学进行分析,获得相关非等温动力学参数,并利用 Kissinger方程计算其结晶活化能。结果表明：Avrami方程和Mo 方程能很好描述 PEEK/CF 复合材料的非等温结晶过程；PEEK/CF复合材料的非等温结晶活化能为79.99 kJ/mol。%The nonisothermal crystallization behaviors of PEEK and PEEK/ CF com-posites were investigated by DSC. Avrami equation, Ozawa approach and Mo approach were respectively used to analyze nonisothermal crystallization kinetic data.The parame-ters in nonisothermal crystallization process were analyzed,and activation energy value of PEEK/CF composite was also determined according to the Kissenger method.The results show that the Avrami equation and Mo equation are beneficial to describe the nonisother-mal crystallization process of PEEK/CF composites and the activation energy value of the composite is 79.99 kJ/mol.